CVE-2021-21678: jenkins project jenkins saml plugin Cross-Site Request Forgery (CSRF)
CVSS: 8.8v3.1HighModified
AliasesGHSA-r5w3-pfq8-3r82
Published 31-08-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-21678 is a high (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in jenkins project jenkins saml plugin. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.4% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 31-08-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Jenkins SAML Plugin 2.0.7 and earlier allows attackers to craft URLs that would bypass the CSRF protection of any target URL in Jenkins.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 2 agree
- OSV · MavenEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.81%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.81% on 21-09-2026
21-09-202621-10-2026
EPSS score0.81%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Jenkins1 product
- saml≥ 1.1.3, ≤ 2.0.7
Jenkins project1 product
- jenkins saml plugin≥ 1.1.3, < unspecified | ≥ unspecified, ≤ 2.0.7
Org.jenkins-ci.plugins1 product
- saml< 2.0.8
3 vendors · 3 products
References
5 links- www.openwall.com/lists/oss-security/2021/08/31/1Mailing ListX Refsource MLISTWEBThird Party Advisory
